• Research into the reasons for trepanation (2016) http://www.bbc.com/earth/story/20160826-why-our-ancestors-drilled-holes-in-each-others-skulls 9 comments 19/5/2020
• Research into the reasons for trepanation (2016) http://www.bbc.com/earth/story/20160826-why-our-ancestors-drilled-holes-in-each-others-skulls 9 comments 16/6/2019

• The puzzles of ancient brain surgery. Why our ancestors drilled holes in each other's skulls. http://www.bbc.com/earth/story/20160826-why-our-ancestors-drilled-holes-in-each-others-skulls 3 comments 6/5/2019 indepthstories
• Why our ancestors drilled holes in each other's skulls http://www.bbc.com/earth/story/20160826-why-our-ancestors-drilled-holes-in-each-others-skulls 10 comments 16/4/2019 science
• Why our ancestors drilled holes in each other's skulls http://www.bbc.com/earth/story/20160826-why-our-ancestors-drilled-holes-in-each-others-skulls 8 comments 23/2/2019 worldnews
• Why our ancestors drilled holes in each other's skulls http://www.bbc.com/earth/story/20160826-why-our-ancestors-drilled-holes-in-each-others-skulls 5 comments 29/8/2016 science
• Why our ancestors drilled holes in each other's skulls http://www.bbc.com/earth/story/20160826-why-our-ancestors-drilled-holes-in-each-others-skulls 4 comments 29/8/2016 history

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